Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT03958123 · ClinicalTrials.gov registry record · Phase 1

Evaluation of the Effects of Multiple Doses of Cebranopadol on the Electrical Activity of the Heart in Healthy Subjects

A Phase 1 study, sponsored by Tris Pharma.

Completed
Registry status
Phase 1
Development phase
171
Enrollment target

NCT03958123: Completed Phase 1 study, sponsored by Tris Pharma.

NCT03958123 is a Phase 1 study that has completed, run by Tris Pharma. The registered enrollment target is 171 participants, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (185% higher). According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT03958123, a Phase 1 study, has completed, sponsored by Tris Pharma.

COMPLETED
Registry status
Phase 1
Development phase
171 participants
Enrollment target

Study Summary

The objective of this study was to evaluate the effects of cebranopadol (GRT6005) on the electrical activity of the heart in healthy participants. The study consisted of a screening period within 21 days before the first dose of investigational medicinal product (IMP) (between Day -25 and Day -4) during which informed consent was obtained and the general suitability of the participants for the trial was assessed according to the inclusion/exclusion criteria. Participants were confined to the trial site from 4 days before first IMP dosing on Day 1 to 4 days after last IMP dosing on Day 30. During this period, multiple-doses of cebranopadol or matching placebo and a single-dose of moxifloxacin or matching placebo were administered. Moxifloxacin was used as a positive control. It has consistently shown that it has an effect on the heart rhythm. Continuous 12-lead ECGs were recorded at defined time points. Multiple blood and urine samples were drawn for pharmacokinetic evaluations and safety laboratory monitoring (hematology, chemistry, and urinalysis). Additional safety evaluations included recording of adverse events, vital signs (systolic and diastolic blood pressure, pulse rate, respiration rate, body temperature, and weight), oxygen saturation, standard 12-lead ECG, Clinical Opiate Withdrawal Scale (COWS) assessment, and Columbia-Suicide Severity Rating Scale (C-SSRS) assessment. An End-of-Trial Visit was performed on Day 34, or within 7 days after the last pharmacokinetic sample on Day 34, or at early withdrawal.

Primary Outcome

Largest time-matched mean difference between cebranopadol and placebo in supported sitting QT interval corrected for heart rate using an individual correction (QTcNi) change from time-matched baseline measurement on Day -1.

Interventions

  • DRUG 100 μg cebranopadol
  • DRUG 200 μg cebranopadol
  • DRUG 400 μg cebranopadol
  • DRUG Placebo to cebranopadol encapsulated tablets
  • DRUG 400 mg Moxifloxacin

Trial Details

FieldValue
Enrollment Target 171 participants
Start Date 2013-07-10
Est. Completion 2013-11-27
Phase Phase 1
Tris Pharma

14 total trials

What the finished NCT03958123 record still lists

NCT03958123 is an interventional study that assigns participants to a tested intervention. The registered 171 participants enrollment target is mid-sized for trials with a published cap, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (185% higher).

The record links to 0 conditions, and to 5 interventions - of which 100 μg cebranopadol is the first listed.

NCT03958123 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03958123 about?

NCT03958123 is a clinical study titled "Evaluation of the Effects of Multiple Doses of Cebranopadol on the Electrical Activity of the Heart in Healthy Subjects". The objective of this study was to evaluate the effects of cebranopadol (GRT6005) on the electrical activity of the heart in healthy participants. The study consisted of a screening period within 21 days before the first dose of investigational medicinal product (IMP) (between Day -25 and Day -4) d...

What is the current status of trial NCT03958123?

This trial is currently completed. It is a Phase 1 study. The enrollment target is 171 participants. The study started on 2013-07-10. Estimated completion is 2013-11-27.

What interventions are being tested in trial NCT03958123?

The interventions under investigation include: 100 μg cebranopadol (DRUG), 200 μg cebranopadol (DRUG), 400 μg cebranopadol (DRUG), Placebo to cebranopadol encapsulated tablets (DRUG), 400 mg Moxifloxacin (DRUG).

Who is sponsoring clinical trial NCT03958123?

This trial is sponsored by Tris Pharma, which has 14 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03958123's enrollment target sits among peer trials

171 324th of 2000 higher than 1,676 of 2,000 other Phase 1 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT02641145 · 171 participants · NA

    Molecular Imaging of Primary Amyloid Cardiomyopathy

  • NCT05541029 · 171 participants · NA

    Music Listening: A Mechanistic Trial

  • NCT05561127 · 171 participants · Phase 3

    Paclitaxel Coated Balloon for the Treatment of Chronic bEnigN sTricture- Bowel

  • NCT05592938 · 171 participants · NA

    Partial Breast Re-irradiation Using Ultra Hypofractionation (PRESERVE)

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT03958123, the US trial registry maintained by the National Library of Medicine. NCT03958123 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.